@article{11:34,author={Pradeep Ravikumar and Alekh Agarwal and Martin J. Wainwright}, Title={Message-passing for Graph-structured Linear Programs: Proximal Methods and Rounding Schemes},journal={Journal of Machine Learning Research},volume={11}, url={http://www.jmlr.org/papers/volume11/ravikumar10a/ravikumar10a.pdf}}